Gustav l



economy is thus UNITED STATES PATENT OFFICE.

GUSTAV L. JAEGER, OF NEW YORK, N. Y.

MAKING PAPER-PULP FROM STRAW STALKS, AND OTHER FIBROUS MATERIAL.

Application filed November 23, 1881. (No model.)

To all whom it may concern:

Be it known that I, GUSTAV L. JAEGER, a citizen of the United States, residing at New York, in the county and State of New York, have invented new and useful Improvements in MakingPaper-Pulp from Straw, Stalks, and other Fibrous Material, of which the following is a specification.

This invention relates to the production of paper-pulp from straw and other stalks, or from vegetable fiber; and it consists in first compacting the stalks or fiber, to solidify the mass, and then subjecting the whole to a grinding action, thus disintegrating the same and reducing it to the desired state. When stalks are used I crush the same before they are compacted and groun,

In the accompanying drawings, Figure 1 shows a machine in vertical longitudinal section adapted to the purposes of my invention. Fig. 2 is a horizontal section thereof.

Similar letters indicate corresponding parts.

In carrying out my invention I compact a suitable quantity of the straw or other stalks or the fiber to be used, forming a solid block or package, and in this state subject the mass to agrinding action, whereby itis disintegrated or worn away and reduced to a pulp in a simi- 'ood in wood-pulpthe stalks or fiber may and by feeding the subby means of rollers B it straw or other fibrous stalks are used, the rollers B serve to crush the same and then to feed the crushed stalks into the receptacle or box A, so that the grinding process is facilitated.

he machine used, however, forms the subjectmatter of a separate application for Letters Patent, and a detailed description thereof is therefore deemed unnecessary.

What I claim as new, and desire to secure by Letters Patent, is

1. The process of producing paper-pulp from straw or other stalks which consists in first compacting the stalks and then subjecting the same to a grinding action, substantially as desciibed.

producingpaper-pulp from straw or other stalks which consists in first crushing the stalks, then compacting the crushed stalks, and then subjecting the same to a grinding action.

The process of producing paper-pulp from vegetable fiber which consists in first compacting the fiber and then subjecting the same to a grinding action, substantially as described.

In testimony whereof I have hereunto set my 1n the presence too coarse or long paper-making,

such fiber being usually waster. A material effected by my invention not only in the treatment of this wood fiber, but also other fiber at present unavailablein papermaking, as well as straw or other stalks which GUSTAV L. JAEGER.

Witnesses W. HAUFF, E. F. KASTENHUBER. 

